Sharpener



FIG. 1 is an upper perspective view of the sharpener showing my new design;

FIG. 2 is a rotated, upper perspective view of the sharpener shown in FIG. 1;

FIG. 3 is a rear view of the sharpener shown in FIG. 1;

FIG. 4 is a left side view of the sharpener shown in FIG. 1;

FIG. 5 is a right side view of the sharpener shown in FIG. 1;

FIG. 6 is a top plan view of the sharpener shown in FIG. 1;

FIG. 7 is a bottom plan view of the sharpener shown in FIG. 1; and,

FIG. 8 is a lower perspective view of the sharpener shown in FIG. 1. 

CLAIM I claim the ornamental design for a sharpener, as shown and described. 